If each square in the grid has a side length of 8 mm, what is the width of the rectangle? Do not include units (mm) in your answer. Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2)

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Step-by-step explanation:

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Considering the horizontal plane of the gird.

Count the number of the squares in that plane;

This gives 4

Multiply 4 by length of each side of a square;